Add Docker Machine

Signed-off-by: Guo Qiao <guoqiao@gmail.com>

defaults/main.yml

@@ -14,6 +14,10 @@ docker_install_compose: true
 docker_compose_version: "1.22.0"
 docker_compose_path: /usr/local/bin/docker-compose
 
+docker_install_machine: true
+docker_machine_version: "v0.16.1"
+docker_machine_path: /usr/local/bin/docker-machine
+
 # Used only for Debian/Ubuntu. Switch 'stable' to 'edge' if needed.
 docker_apt_release_channel: stable
 docker_apt_arch: amd64

tasks/docker-machine.yml

@@ -0,0 +1,20 @@
+---
+- name: Check current docker-machine version.
+  command: docker-machine --version
+  register: docker_machine_current_version
+  changed_when: false
+  failed_when: false
+
+- name: Delete existing docker-machine version if it's different.
+  file:
+    path: "{{ docker_machine_path }}"
+    state: absent
+  when: >
+    docker_machine_current_version.stdout is defined
+    and docker_machine_version not in docker_machine_current_version.stdout
+
+- name: Install Docker Machine (if configured).
+  get_url:
+    url: https://github.com/docker/machine/releases/download/{{ docker_machine_version }}/docker-machine-Linux-x86_64
+    dest: "{{ docker_machine_path }}"
+    mode: 0755

tasks/main.yml

@@ -27,5 +27,8 @@
 - include_tasks: docker-compose.yml
   when: docker_install_compose
 
+- include_tasks: docker-machine.yml
+  when: docker_install_machine
+
 - include_tasks: docker-users.yml
   when: docker_users